<?php 
/** 
 * Manage media uploaded file. 
 * 
 * There are many filters in here for media. Plugins can extend functionality 
 * by hooking into the filters. 
 * 
 * @package WordPress 
 * @subpackage Administration 
 */ 
 
if ( ! isset( $_GET['inline'] ) ) { 
    define( 'IFRAME_REQUEST', true ); 
} 
 
/** Load WordPress Administration Bootstrap */ 
require_once __DIR__ . '/admin.php'; 
 
if ( ! current_user_can( 'upload_files' ) ) { 
    wp_die( __( 'Sorry, you are not allowed to upload files.' ), 403 ); 
} 
 
wp_enqueue_script( 'plupload-handlers' ); 
wp_enqueue_script( 'image-edit' ); 
wp_enqueue_script( 'set-post-thumbnail' ); 
wp_enqueue_style( 'imgareaselect' ); 
wp_enqueue_script( 'media-gallery' ); 
 
header( 'Content-Type: ' . get_option( 'html_type' ) . '; charset=' . get_option( 'blog_charset' ) ); 
 
// IDs should be integers. 
$ID      = isset( $ID ) ? (int) $ID : 0; // phpcs:ignore WordPress.NamingConventions.ValidVariableName 
$post_id = isset( $post_id ) ? (int) $post_id : 0; 
 
// Require an ID for the edit screen. 
if ( isset( $action ) && 'edit' === $action && ! $ID ) { // phpcs:ignore WordPress.NamingConventions.ValidVariableName 
    wp_die( 
        '<h1>' . __( 'Something went wrong.' ) . '</h1>' . 
        '<p>' . __( 'Invalid item ID.' ) . '</p>', 
        403 
    ); 
} 
 
if ( ! empty( $_REQUEST['post_id'] ) && ! current_user_can( 'edit_post', $_REQUEST['post_id'] ) ) { 
    wp_die( 
        '<h1>' . __( 'You need a higher level of permission.' ) . '</h1>' . 
        '<p>' . __( 'Sorry, you are not allowed to edit this item.' ) . '</p>', 
        403 
    ); 
} 
 
// Upload type: image, video, file, ...? 
if ( isset( $_GET['type'] ) ) { 
    $type = (string) $_GET['type']; 
} else { 
    /** 
     * Filters the default media upload type in the legacy (pre-3.5.0) media popup. 
     * 
     * @since 2.5.0 
     * 
     * @param string $type The default media upload type. Possible values include 
     *                     'image', 'audio', 'video', 'file', etc. Default 'file'. 
     */ 
    $type = apply_filters( 'media_upload_default_type', 'file' ); 
} 
 
// Tab: gallery, library, or type-specific. 
if ( isset( $_GET['tab'] ) ) { 
    $tab = (string) $_GET['tab']; 
} else { 
    /** 
     * Filters the default tab in the legacy (pre-3.5.0) media popup. 
     * 
     * @since 2.5.0 
     * 
     * @param string $tab The default media popup tab. Default 'type' (From Computer). 
     */ 
    $tab = apply_filters( 'media_upload_default_tab', 'type' ); 
} 
 
$body_id = 'media-upload'; 
 
// Let the action code decide how to handle the request. 
if ( 'type' === $tab || 'type_url' === $tab || ! array_key_exists( $tab, media_upload_tabs() ) ) { 
    /** 
     * Fires inside specific upload-type views in the legacy (pre-3.5.0) 
     * media popup based on the current tab. 
     * 
     * The dynamic portion of the hook name, `$type`, refers to the specific 
     * media upload type. 
     * 
     * The hook only fires if the current `$tab` is 'type' (From Computer), 
     * 'type_url' (From URL), or, if the tab does not exist (i.e., has not 
     * been registered via the {@see 'media_upload_tabs'} filter. 
     * 
     * Possible hook names include: 
     * 
     *  - `media_upload_audio` 
     *  - `media_upload_file` 
     *  - `media_upload_image` 
     *  - `media_upload_video` 
     * 
     * @since 2.5.0 
     */ 
    do_action( "media_upload_{$type}" ); 
} else { 
    /** 
     * Fires inside limited and specific upload-tab views in the legacy 
     * (pre-3.5.0) media popup. 
     * 
     * The dynamic portion of the hook name, `$tab`, refers to the specific 
     * media upload tab. Possible values include 'library' (Media Library), 
     * or any custom tab registered via the {@see 'media_upload_tabs'} filter. 
     * 
     * @since 2.5.0 
     */ 
    do_action( "media_upload_{$tab}" ); 
} 
 
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